description

In order to protect the main bearing of the cutting head of the tunnel boring machine, it is necessary to inject wash-resistant sealing grease: a new generation of HBW and special extreme pressure grease.

The sealing grease is continuously injected into the labyrinth sealing space from the downstream of the sealing surface. Grease is injected into the sealed cavity and released into the labyrinth-type sealed space to mix with the new generation of HBW.

In order to maximize the protection of the main bearing from the erosion of water, soil, and soil fine powder, sealing grease and lubricating grease are used to ensure the sealing performance of the main bearing.

Product advantages

A new generation of HBW sealing grease:

Pumpability

Washing resistance: water, foam, mud...

Stress resistant

Good lubricity

Compatible with grease

Self-destruction increases safety

Biodegradability

Environmentally friendly products in line with sustainable development

Certified by the tunnel boring machine manufacturer